The SR161 can provide years of service when used with a computer's standard RS232 serial port interface, an AISWatchmate or a compatible chartplotter. It is not designed to be used with chart plotters employing a NMEA standard (RS422) interface (such as Raymarine C,  E and G Series).  If you need an AIS solution for use with a chart plotter, please consider one of our NMEA-compatible AIS receivers  or any of our AIS transponders

• Single channel receiver that scans between the two AIS frequencies
• When interference is detected on one receiving channel, the SR161 automatically switches to the alternate AIS channel
• High-sensitivity AIS data reception
• Line of sight reception similar to marine VHF reception distances
• Very low power consumption
• Receives AIS Class A and Class B vessel reports
• Sends information to a PC via a serial interface
• Ability to track and display information on multiple targets
• Easy installation: connect a VHF antenna (not included), 12 volt DC power and a serial cable to your PC
• Can be used with your existing VHF marine radio antenna with an appropriate splitter
• Can an be used to consolidate incoming NMEA positional data from a GPS into a combined high-speed data stream on a single serial port.

The SR161 can be used with many popular computer-based marine navigation packages. The following Windows®-based packages have been tested and are known to work with these receivers:

• Rose Point Coastal Explorer 1.1 or 2009 See sample screen!
• Maptech Chart Navigator Pro
• Nobeltec Visual Navigation Suite 8.0 or later See sample screen!
• Nobeltec Admiral
• Capn 8.0
• Boatcruiser 2.0 See sample screen!
• Fugawi Marine ENC See sample screen!
• Global Navigation Software NavPak
• DigiBOAT Software-On-Board
• Xanatos Titan
• EuroNav seaPro
• Y-tronic Yacht-AIS
• Navicon AIS Navigator
• COAA Ship Plotter See sample screen!
• Memory-Map Professional See sample screen!
• MaxSea v12.5.3 with Mobiles Module

For the Mac, the following packages are recommended:

• GPSNavX See sample screen!
• MacENC See sample screen!

Any navigation package that can process NMEA VDM data from a serial port should work with the SR161.

Electrical

• Power supply range: 9 - 15 volts DC
• Power consumption : 1.5 watt

Output

• Format: NMEA 0183 version 3
• Baud rate: 38,400 baud
• Output message: AIVDM, GPRMC (SR162G)
• LEDs: 2 LEDs for receiver and data transfer

Receiver

• Frequency: AIS1 on 161.975 MHz, AIS2 on 162.025 MHz
• Dual channel scan receiving (SR161)
• Full time dual channel receiving (SR162/SR162G)
• Integrated 12 channel GPS receiver (SR162G)
• Channel spacing: 25 KHz
• Sensitivity: -112dBm
• Demodulation: GMSK
• Antenna impedance: 50 ohms

Physical

• Dimensions: 115 x 75 x28 mm
• Weight: 400g
• Connectors: antenna BNC, 12 volt wiring, serial port
• Output port: 9 pin D socket RS-232 serial
• GPS antenna port (SR162G)
• 16 foot cable and magnet mounted GPS antenna (SR162G)

Packages include the AIS Receiver, a 9-pin serial cable, wiring and connector for 12 volt power. Milltech Marine customers are provided with a link where they can download product manuals and free digital charts and software for displaying AIS information.